Global Patent Index - EP 3844449 A4

EP 3844449 A4 20220427 - HYBRID THERMOSIPHON SYSTEM

Title (en)

HYBRID THERMOSIPHON SYSTEM

Title (de)

HYBRIDES THERMOSIPHONSYSTEM

Title (fr)

SYSTÈME DE THERMOSIPHON HYBRIDE

Publication

EP 3844449 A4 20220427 (EN)

Application

EP 19854286 A 20190827

Priority

  • US 201862723400 P 20180827
  • US 2019048382 W 20190827

Abstract (en)

[origin: US2020064028A1] The disclosure relates to a thermosiphon system operable to consistently maintain the permafrost and active frost layer in a frozen condition to adequately support buildings and other structures. During cooler seasons, the thermosiphon system uses a passive refrigeration cycle to efficiently maintain the frozen layers using the cold air. When the air temperature rises during the warmer months, the system transitions into an active refrigeration mode that uses a refrigeration system to minimize thawing or degradation of the permafrost and active frost layers.

IPC 8 full level

F28D 15/02 (2006.01); F25B 1/00 (2006.01); F25B 49/02 (2006.01)

CPC (source: EP US)

F24S 10/95 (2018.04 - US); F24S 90/10 (2018.04 - US); F24T 10/10 (2018.04 - US); F28D 1/0226 (2013.01 - EP); F28D 15/0266 (2013.01 - US); F24T 10/10 (2018.04 - EP); F24T 10/40 (2018.04 - EP); F24T 50/00 (2018.04 - EP); F24T 2010/53 (2018.04 - US); F28D 2020/0069 (2013.01 - EP); Y02B 10/20 (2013.01 - EP); Y02E 10/10 (2013.01 - EP); Y02E 10/44 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

US 11408645 B2 20220809; US 2020064028 A1 20200227; CA 3110361 A1 20200305; CA 3110361 C 20231003; EP 3844449 A1 20210707; EP 3844449 A4 20220427; WO 2020046969 A1 20200305

DOCDB simple family (application)

US 201916553031 A 20190827; CA 3110361 A 20190827; EP 19854286 A 20190827; US 2019048382 W 20190827